Lösungen
Arbeitsauftrag:
Ermittle die fehlenden Angaben und trage diese in die Lücken ein:
Element |
Symbol |
OZ |
Protonenzahl |
Neutronenzahl |
Elektronenzahl |
Atommasse [u] |
Gruppe |
Periode |
Helium |
He |
2 |
2 |
2 |
2 |
4,00 |
VIII |
1 |
Fluor |
F |
9 |
9 |
10 |
9 |
18,98 |
VII |
2 |
Caesium |
Cs |
55 |
55 |
78 |
55 |
132,90 |
I |
6 |
Arsen |
As |
33 |
33 |
42 |
33 |
74,92 |
V |
4 |
Sauerstoff |
O |
8 |
8 |
8 |
8 |
15,994 |
VI |
2 |
Argon |
Ar |
18 |
18 |
22 |
18 |
39,948 |
VIII |
3 |
Schwefel |
S |
16 |
16 |
16 |
16 |
32,066 |
VI |
3 |
Kalium |
K |
19 |
19 |
20 |
19 |
39,098 |
I |
4 |
Iod |
I |
53 |
53 |
74 |
53 |
127 |
VII |
5 |
Gold |
Au |
79 |
79 |
118 |
79 |
197 |
Ia |
6 |
Lanthan |
La |
57 |
57 |
82 |
57 |
138,905 |
IIIa |
6 |
Calcium |
Ca |
20 |
20 |
20 |
20 |
40,078 |
II |
4 |
Natrium |
Na |
11 |
11 |
12 |
11 |
22,987 |
I |
3 |
Aluminium |
Al |
13 |
13 |
14 |
13 |
26,981 |
III |
3 |
Bor |
B |
5 |
5 |
6 |
5 |
10,811 |
III |
2 |
Krypton |
Kr |
36 |
36 |
48 |
36 |
83,80 |
VIII |
4 |
Kupfer |
Cu |
29 |
29 |
34 |
29 |
63,546 |
Ia |
4 |
Beryllium |
Be |
4 |
4 |
5 |
4 |
9,012 |
II |
2 |
Brom |
Br |
35 |
35 |
45 |
35 |
79,904 |
VIII |
4 |
Kobalt |
Co |
27 |
27 |
32 |
27 |
58,933 |
VIIIa |
4 |
OZ: Ordnungszahl
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